p. 5889 - 5897
(2007/10/03)(2S)-2-[(tert-butoxycarbonyl)amino]pent-4-enoic acid
t-butyl (2S,4S)-5-azido-2-N-(9-phenyl-9H-fluoren-9-yl)amino-4-N-(2-trimethylsilylethanesulfonyl)aminopentanoate
N-phenylfluorenyl-(S)-2-amino-4-pentenoic acid
ethyl (RS)-N-(tert-butoxycarbonyl)-2-aminopent-4-enoate
9-bromo-9-phenyl-9H-fluorene